Chlorine in the structure of Crystal Structure of Unbound Sars Coronavirus Main Peptidase in the Space Group C2 (pdb 2a5a)

The binding sites of Chlorine atom in the structure of Crystal Structure of Unbound Sars Coronavirus Main Peptidase in the Space Group C2 (pdb code 2a5a). This binding sites where shown with 5.0 Angstroms radius around Chlorine atom. The 2a5a structure was solved by T.-W.LEE, M.M.CHERNEY, C.HUITEMA, J.LIU, K.E.JAMES, J.C.POWERS, L.D.ELTIS, M.N.JAMES, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: